Internal-combustion engine.



W. G. SCHNEIDER.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED JAN.

N O LW Patented Oct. 13, 1914.

2 SHEETS SHEBT l,

fits-t QSQwm-XB 2 SHEETS SHBET 2.

Patented Oct. 13, 1914.

W. C. SUHNEIDLR.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED JAN.24.1912

WALTER C. SCHNEIDER, OF DETR-QIT, MICHIGAN.

INTERNALCOMBUSTION ENGINE.

Specification of Letters Patent.

Patented Oct. 13, 19 14..

Application filed January 24. 1912. Serial No. 678,087.

To all whom it may concern: Y

Be it known that l, WALTER C. SCHNEI- following is a specification, reference. being had therein-to the accompanying draiwngs.

This invention relates to improvements in internal combustion engines and more particularly to a valve for controlling the inlet and exhaust of such engines, and means for actuating the some in timed relation to the movement of the pistons.

The object of the. invention is to provide a simple and compact construction which is noiseless and efficient in its operation and to provide certain other new and useful features, the invention consisting in the mat ters hereinafter more fully set forth and pointed out in the claims, reference being had to the accompanying drawings in which- Figure l is a side elevation of on engine embodying the invention with. parts in section to show the construction; Fig. 2 is an nd elevation of the same with parts in section; Fig. 3 is a detail showing alongitudr 'nal' vertical section through the engine cylinders; Fig.v t is a transverse vertical sec tion of the same on the line IVIV of Fig.

3; Fig. 5 is a horizontal section on the line "-4 of Fig. 4; Fig. 6 is a'sectiona-l detail of a portion of a valve'and engine cylinders showing a modified construction; Fig. 7 is a section on the line VIIVII of G; and Fig. 8 is a section on the line V1II -VIII of 8.

A foureylinder engine of the vertical type is shown for convenience of illus- -tration,..hut it will be understood that the invention may be applied to an engine havmg any desired number of cylinders and of any suitable construction. In the drawings 1 represents each of the several cylinders,

from the upper end of each cylinder into the barrel. The upper half of the barrel 6 is'tormed in a. dethehable head 9 which is bolted to the upper end. of the cylinders and this head is also formed with an inlet passage l0 and an outlet passe e 11 opening through the sides of the head and into the barrel. A tubular sleeve 12 is mated-in the barrel and formed with-ports corresponding to and registering with the several inlet and exhaust passages in the upper end of the cylinders and the head. i

rotary valve 12 fits within the sleeve 1 to turn freely there n and this valve coin prises a solid cylindricalv member having a connecting passage 14 extending therethrough from sideto side thereofopposite each oi the cylinders, to connect the passages in the upper ends of the cylinders with the passages in the head. These pas sages ll extend diagonally through the valve cylinder from side to side thereof, and

the ii-usages l0 and 11 in thehead o'refarranged to register with one end of said passages 14, while the passages Tend 8 are an ranged out of vertical alineincnt with the piifirzaares in he head and register with the opposite end of said diagonal-passages. By this diagonal arrangement of the valve as sages ll, one end only ofea'ch. will register.

with the passagesu-hove the valve and the other end will register only with the p11"- sages. llNElOW'rt-llfi valve, and thus, upon a single rotation of the valve, theinlet pas sages l0 and 7 will be connected by the valve tlSSll fPS,.l)llt once during such revolution, and likewise the exhaust rn'issnges S, and U will be connected but once during a single revolution of the valve. A sin le explosive ehnrg! is thus admitted to each cylinder the valve during one of its revolutions the burned gases of that charge are pe mitted to escape by the single opening of the exhaust passage of each cylinder.

in a

four-cycle engine. this valve is therefore turned a.t one-half ofthe speed of the crank shaft and the ports and passages are 8% ranged to properly time the opening and closing of the intake and exhaust passag s. with relation to the movement of the pis-= tons. It will be noted also that the disgorial arrangement of the valve passages ohviates the necessity. for more than one of such aSsagesjobeaoh cylinder when the valve is operated at half the speed of the crank shaft, and the engine-inset iiixe'frmr:v

cycle type, as said dia onal passages serve to connect the two per ions of both the inlet and exhaust passages. Gas is therefore admitted to the cylinders through said diagonal passages and the hot burned gases permitted to escape therethrough, and thus the rotary valve member is cooled by the ingoing charges.

The rotary valve member 13 may be turned in timed relation to the rotation of the crank shaft in any desired manner, but preferably by means of a worm gear 15 se cured upon the end of a shaft 16 which is formed integral with the end of the valve member by turning down one end thereof to a suitable diameter. The. worm 15 is driven by a worm gear 17 secured upon the n end of a vertical shaft 18 mounted in suit able bearings at one end of the crank case and this vertical shaft is driven by means of a worm gear 19 thereon engaging a worm 20 secured upon the adjacent outer end of the crank shaft 3.

The several cylinders of the engine are formed with an integral Water jacket 21 in the usual manner, and this water jacket is connected at its upper end with the head 9, which is also formed with a water jacket 22 surrounding the barrel 6 and'passages leading thereto. A water pipe 23 leads from the lower end of the water jacket 21 to a pump casing 24 containing a pump which is driven by means of a shaft 25 provided with a beveled gear 26 to engage a similar gear 27 secured upon the vertical shaft 18.

The extreme lower end of the shaft 18 is provided with a screw 28 fitting within a cylindrical casing 29 .which is connected by a passage 30 with the lower part of the crank case and has an outlet passage 31-near its upper end to permit the discharge of oil which is elevated by the screw 28. From the outlet 31 the oil. may be conducted to the engine hearings or other parts to be lubricated. By this arrangement of drive the rotary valve is directly driven from the crank shaft by a single shaft and worm gears, and said shaft also-serves as a drive for the water circulating pump and the oil feed.

In the construction shown in Figs. 6, 7 and 8, the valve is adapted to be turned at one quarter of the speed of the crank shaft, two explosive charges being admitted to each cylinder during one revolution of the valve and the exhaust being twice opened during such revolution. For this purpose the cylindri al valve member 32 is f rmed with two diagonally arranged passages 33! and 34 for each cylinder, such passages extending through the valve from side to side thereof in parallel relation will] the (and of one passage opening through one side of the valve valve in the same transverse plane so that when the valve is rotated, each of these passages will register with a single inlet passage 35 and a single outlet passage 36 for each cylinder. To connect with the opposite ends of these passages at the lower side of the valve, two sets of passages open into the upper end of each cylinder, the passage connecting with an exhaust passage 37 and an inlet passage 38, and the passage ,33 connecting with an exhaust passage 39 and an inlet passage 40.

Obviously, changes may be made in the construction and arrangement of parts without departing from the spirit of my invention and I do not wish to limit myself to the particular form or arrangement shown.

Having thus fully described my invention what l claim is:

1. The combination with an engine cylinder, of a barrel forming a valve seat, a rotary valve member in said barrel, inlet and exhaust passages opening into the cylinder and controlled by said valve member, the said passages at one side of the barrel opening into the same in adifferent lane transverse to the longitudinal axis 0 the barrel, to that in which the said passages at the opposite side of said barrel open into the same, and said valve member being formed with a. passage which opens through the sides thereof and is adapted to register with said inlet and exhaust passages when said member is turned.

2. The combination with an engine cylinder, of a head on said cylinder forming a seat for a rotary valve member and provided with an inlet and an exhaust passage leading from the cylinder and opening through. ports in the seat arranged in the same transverse plane, and an inlet and an exhaust passage at the oppositeside of said seat opening through ports therein arran ed in the some transverse plane and in a di erent transverse plane to that in which the other orts are located, said last named passages being in communication with the exterior of the head; a rotary valve member engaging said seat to rotate therein and formed with a passage opening through opposite sides thereof with one open end and the adjacent and of the olhor passage 1 dci being formed with an inlet and an exopening through the opposite side of the l haust passage opening through the seat and the head being formed with an inlet and an member rotatable within the barrel and 20 exhaust passage opening through the seat, a formed with transverse passages, one pasrotary valve member in the barrel and prosage opposite each cylinder extending vided with a passage extending therethrough through the valve member diagonally to the from side to side thereof diagonally to the longitudinal axis of said member'and adaptlongitudinal axis of said valve member to ed to register at one end with the passages 25 connect at one end with the passages of the leading to the cylinders and at the opposite cylinder and at its opposite end with the end with the assages in the head, a verticalpassages in the head,and means for rotating shaft, means or transmitting motion to said said member in timed relation to the moveshaft in timed relation to the movement of ment of a piston in the cylinder. the pistons, a gear on said shaft, and a. gear at 4 In an engine, the combination of a (flusecured to the valve member to engage said rality of cyhnders, pistons in said c lin ers, gear.

a head extending across the cylinders and a In testimon whereof I aflix my signature formed with a seat for a rotary valve, inlet in presence of two witnesses.

and exhaust passages openin into the cylin- WALTER C. SCHNEIDER. ders and through the barre and inlet and Witnesses:

exhaust passages in the head extending from Orro F. BARTHEL the barrel to the exterior of the head, a valve LEWIB E. Fmlm'm. 

